Remove width, height and key_count from info.json (#14274)

keyboards/dc01/arrow/info.json

@@ -2,8 +2,6 @@
     "keyboard_name": "DC01 Arrow Cluster",
     "url": "",
     "maintainer": "Yiancar-Designs",
-    "width": 3,
-    "height": 5,
     "layouts": {
         "LAYOUT_all": {
             "layout": [{"label":"Insert", "x":0, "y":0}, {"label":"Home", "x":1, "y":0}, {"label":"PgUp", "x":2, "y":0}, {"label":"Delete", "x":0, "y":1}, {"label":"End", "x":1, "y":1}, {"label":"PgDn", "x":2, "y":1}, {"label":"\u2191", "x":1, "y":3}, {"label":"\u2190", "x":0, "y":4}, {"label":"\u2193", "x":1, "y":4}, {"label":"\u2192", "x":2, "y":4}]